Siemens SIMATIC S7-300 Module data Reference Manual

Analog Modules
4-139
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Terminal connection diagram and block diagram of the SM 331; AI 8 x TC
2
20
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
DC
to
DC
ADC
L- M+
Back-
plane
bus
inter-
face
ADC
ADC
ADC
Ext
KV
22
40
21
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
Ext KV
M
L+
Channel
0
Channel
1
Channel
2
Channel
3
lc-
lc+
KV-
KV+
TC+0
TC-0
TC+1
TC-1
TC+2
TC-2
TC+3
TC-3
TC+4
TC-4
TC+5
TC-5
TC+6
TC-6
TC+7
TC-7
K4
K5
K6
K7
Channel
number
Fault indicator – red
SF
Figure 4-45 Module View and Block Diagram of the SM 331; AI 8 x TC

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)